feat: validate that onlyOn: NETWORK_ERROR is only used with ApiCheck/UrlMonitor [sc-24520]

[sorccu]

Using RetryStrategy.onlyOn with checks/monitors other than ApiCheck/UrlMonitor will now produce the following validation error:

✖ [TcpMonitor:tcpsample-1] Invalid property value

  The value provided for property "retryStrategy" is not valid.

  Reason: Using "NETWORK_ERROR" with "onlyOn" is only supported in the
  ApiCheck and UrlMonitor constructs.

✖ [BrowserCheck:browsersample-1] Invalid property value

  The value provided for property "retryStrategy" is not valid.

  Reason: Using "NETWORK_ERROR" with "onlyOn" is only supported in the
  ApiCheck and UrlMonitor constructs.

Also, using any other value for onlyOn will produce the following error (in addition to TypeScript showing an error):

✖ [BrowserCheck:browsersample-1] Invalid property value

  The value provided for property "retryStrategy" is not valid.

  Reason: Unsupported value "FOO" for "onlyOn".

Affected Components

• CLI
• Create CLI
• Test
• Docs
• Examples
• Other

Notes for the Reviewer

Resolves #[issue-number]

New Dependency Submission